12
MCQ (Single Correct Answer)
Increase in kinetic energy can overcome intermolecular forces of attraction. How will the viscosity of liquid be affected by the increase in temperature?
A
Increase
B
No effect
C
Decrease
D
No regular pattern will be followed
13
MCQ (Single Correct Answer)
How does the surface tension of a liquid vary with increase in temperature?
A
Remains same
B
Decreases
C
Increases
D
No regular pattern is followed
14
MCQ (Multiple Correct Answer)
With regard to the gaseous state of matter which of the following statements are correct ?
A
Complete order of molecules
B
Complete disorder of molecules
C
Random motion of molecules
D
Fixed position of molecules
15
MCQ (Multiple Correct Answer)
Which of the following figures does not represent 1 mole of dioxygen gas at STP?
A
16 g of gas
B
22.7 L of gas
C
$6.022 \times 10^{23}$ dioxygen molecules
D
11.2 L of gas
16
MCQ (Multiple Correct Answer)
Under which of the following conditions applied together, a gas deviates most from the ideal behaviour?
A
Low pressure
B
High pressure
C
Low temperature
D
High temperature